WO2015169646A1 - Device for varying the speed of a power train, specifically for driving a motor vehicle, in particular of the hybrid type - Google Patents

Device for varying the speed of a power train, specifically for driving a motor vehicle, in particular of the hybrid type Download PDF

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Publication number
WO2015169646A1
WO2015169646A1 PCT/EP2015/059212 EP2015059212W WO2015169646A1 WO 2015169646 A1 WO2015169646 A1 WO 2015169646A1 EP 2015059212 W EP2015059212 W EP 2015059212W WO 2015169646 A1 WO2015169646 A1 WO 2015169646A1
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WO
WIPO (PCT)
Prior art keywords
wheels
epicyclic
speed
wheel
train
Prior art date
Application number
PCT/EP2015/059212
Other languages
French (fr)
Inventor
Stephane Venturi
Original Assignee
IFP Energies Nouvelles
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles filed Critical IFP Energies Nouvelles
Priority to EP15722108.6A priority Critical patent/EP3140142A1/en
Priority to CN201580021627.8A priority patent/CN106255843A/en
Publication of WO2015169646A1 publication Critical patent/WO2015169646A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/724—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously using external powered electric machines
    • F16H3/725—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously using external powered electric machines with means to change ratio in the mechanical gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/383—One-way clutches or freewheel devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • F16H7/023—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts with belts having a toothed contact surface or regularly spaced bosses or hollows for slipless or nearly slipless meshing with complementary profiled contact surface of a pulley
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4816—Electric machine connected or connectable to gearbox internal shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0008—Transmissions for multiple ratios specially adapted for front-wheel-driven vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • This train also comprises a ring 46 connected to a hollow shaft 48, said crown shaft, surrounding the hollow shaft 38 of the sun gear.
  • This ring is connected externally to the housing 44 by the unidirectional coupling 32, called crown freewheel.
  • the present invention proposes to remedy the aforementioned drawback by means of a speed variation device which makes it possible to carry out the rotation of the driving axle in the same direction as that of the machine epicyclic gear train.
  • the tape closed on itself may include a chain.
  • Figure 2 is a diagram showing a speed variation device of a powertrain according to the invention applied to a drive system of a hybrid vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Of Transmissions (AREA)
  • Retarders (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present invention relates to a device (10) for varying the speed of a power train of a motor vehicle, in particular of the hybrid type, comprising a drive motor/generator motor (22) and an internal combustion engine (12). The speed variation device comprises: an engine planetary gearset (26) having a sun gear (36) and a ring gear (46), each connected to the shaft of the internal combustion engine by means of a controlled coupling (28, 30) and to the housing (44) of said speed variation device by means of a unidirectional coupling (32, 34), and a motor planetary gearset (58) which is coaxial with the engine planetary gearset (26) and connects this engine planetary gearset to the drive axle (16) via a motion transmission path (78) comprising a wheel (74) supported on the planet carrier (60) and a wheel (76) supported on said drive axle. According to the invention, the motion transmission path (78) comprises a closed band (82) interconnecting the wheels to ensure the transmission of motion in the same direction of rotation between said wheels.

Description

Dispositif de variation de vitesse d'un groupe motopropulseur plus particulièrement pour l'entraînement d'un véhicule  Speed variation device of a power train, more particularly for driving a vehicle
automobile en particulier de type hybride.  automobile in particular of the hybrid type.
La présente invention se rapporte à un dispositif de variation de vitesse d'un groupe motopropulseur plus particulièrement pour l'entraînement d'un véhicule automobile en particulier de type hybride.  The present invention relates to a speed variation device of a powertrain more particularly for driving a motor vehicle, in particular of the hybrid type.
Comme cela est déjà connu, ce type de véhicule comporte un groupe motopropulseur qui utilise seul ou en combinaison, comme mode d'entraînement en traction/propulsion, un moteur thermique à combustion interne avec un dispositif de variation de vitesse, et une machine rotative motrice/génératrice, comme une machine électrique, reliée à une source électrique, telle qu'une ou plusieurs batteries. Cette combinaison a pour avantage d'optimiser les performances de ce véhicule, notamment en réduisant les émissions de polluants dans l'atmosphère et en diminuant la consommation en carburant. As is already known, this type of vehicle comprises a powertrain that uses alone or in combination, as a traction / propulsion drive mode, an internal combustion engine with a speed variation device, and a rotary power machine. generator, like an electric machine, connected to an electrical source, such as one or more batteries. This combination has the advantage of optimizing the performance of this vehicle, including reducing emissions of pollutants into the atmosphere and reducing fuel consumption.
Ainsi, lorsque l'on souhaite déplacer le véhicule avec un couple important sur une grande plage de vitesses tout en limitant la génération de gaz d'échappement et de bruit, comme dans un site urbain, l'utilisation de la machine électrique est privilégiée pour entraîner en déplacement ce véhicule. Thus, when it is desired to move the vehicle with a large torque over a wide range of speeds while limiting the generation of exhaust gas and noise, as in an urban site, the use of the electric machine is preferred for drive this vehicle on the move.
Par contre, le moteur thermique est utilisé pour déplacer ce véhicule lors d'utilisations où une puissance d'entraînement élevée et une grande autonomie de fonctionnement sont demandées.  On the other hand, the engine is used to move this vehicle for uses where high driving power and a long operating autonomy are required.
Comme mieux décrit dans le document FR 2 962 697 du demandeur et tel qu'illustré à la figure 1 , il est déjà connu un dispositif de variation de vitesse 10 d'un groupe motopropulseur qui comprend un moteur thermique 12, notamment un moteur à combustion interne, avec un arbre moteur 14, ici issu du vilebrequin de ce moteur, et un essieu moteur 1 6 qui permet d'entraîner les roues motrices 18 du véhicule, avantageusement par l'intermédiaire d'un pont différentiel 20. Ce groupe motopropulseur comprend également une machine rotative motrice/génératrice 22, ici une machine électrique avec un rotor 24, qui peut fonctionner en tant que machine motrice d'entraînement pour le véhicule ou en tant que machine génératrice d'énergie, comme de l'énergie électrique. As better described in the document FR 2 962 697 of the applicant and as shown in Figure 1, it is already known a speed variation device 10 of a powertrain which comprises a heat engine 12, including a combustion engine internal, with a motor shaft 14, here from the crankshaft of this engine, and a driving axle 1 6 which drives the drive wheels 18 of the vehicle, preferably via a bridge differential 20. This powertrain also comprises a power / generator rotary machine 22, here an electric machine with a rotor 24, which can function as a drive motor for the vehicle or as an energy-generating machine, such as electrical energy.
Le dispositif de variation de vitesse 10 comprend un train épicycloïdal principal 26, baptisé train épicycloïdal de moteur thermique, avec deux accouplements à commande contrôlée 28, 30, tels que des embrayages à friction, et deux accouplements unidirectionnels automatiques, comme des roues libres 32, 34. The speed variation device 10 comprises a main epicyclic gear train 26, called the epicyclic heat engine gear train, with two controlled-control couplings 28, 30, such as friction clutches, and two automatic unidirectional couplings, such as freewheels 32, 34.
Plus précisément, le train épicycloïdal de moteur comprend un planétaire 36 monté fixement sur un arbre creux 38, dit arbre de planétaire, venant coiffer l'arbre moteur 14. L'extrémité libre 40 de cet arbre prend appui dans un palier 42 porté par le carter 44 du dispositif de variation de vitesse au travers de l'accouplement unidirectionnel 34, baptisé roue libre planétaire.  More specifically, the epicyclic motor train comprises a sun gear 36 fixedly mounted on a hollow shaft 38, said sun gear shaft, which cap the drive shaft 14. The free end 40 of this shaft is supported in a bearing 42 carried by the housing 44 of the speed variation device through the unidirectional coupling 34, called planetary freewheel.
Ce train comprend également une couronne 46 reliée à un arbre creux 48, dit arbre de couronne, venant entourer l'arbre creux 38 du planétaire. Cette couronne est reliée extérieurement au carter 44 par l'accouplement unidirectionnel 32, baptisé roue libre couronne.  This train also comprises a ring 46 connected to a hollow shaft 48, said crown shaft, surrounding the hollow shaft 38 of the sun gear. This ring is connected externally to the housing 44 by the unidirectional coupling 32, called crown freewheel.
Ce train épicycloïdal de moteur comprend également un porte-satellites 50 This epicyclic engine train also includes a planet carrier 50
(avec des satellites 52) relié à un palier tubulaire 54, dit palier de porte- satellites, qui vient entourer l'arbre de planétaire 38. (with satellites 52) connected to a tubular bearing 54, said bearing planet carrier, which surrounds the sun gear shaft 38.
Comme mieux visible sur la figure 1 , les extrémités libres des arbres du planétaire et de la couronne portent chacune un accouplement à commande contrôlée 28 et 30, de préférence un embrayage à friction, permettant de relier l'arbre moteur 14 à l'arbre de planétaire 38 et/ou l'arbre de la couronne 48.  As best seen in Figure 1, the free ends of the shafts of the sun gear and the ring each carry a controlled-control coupling 28 and 30, preferably a friction clutch, for connecting the drive shaft 14 to the shaft of sun gear 38 and / or the shaft of the crown 48.
Comme mieux illustré sur la figure 1 , le porte-satellites 50 du train épicycloïdal de moteur 26 est relié à la couronne 56 d'un autre train épicycloïdal 58, dénommé dans la suite de la description train épicycloïdal de machine, et porté par le palier tubulaire 54. Ce train épicycloïdal de machine, qui est placé coaxialement au train épicycloïdal de moteur 26 en entourant l'arbre de planétaire 38 du train épicycloïdal de moteur, comprend un porte-satellites 60 avec des satellites 62 porté par un palier tubulaire 64 et engrenant avec la couronne 56 et avec un planétaire 66 monté sur un arbre tubulaire 68, dit arbre de planétaire additionnel, qui vient entourer l'arbre de planétaire 38 du train épicycloïdal de moteur 26. L'extrémité libre de l'arbre de planétaire 68 porte fixement une roue dentée 70 qui coopère avec une autre roue dentée 72 portée fixement par le rotor 24 de la machine 22. As best illustrated in FIG. 1, the planet carrier 50 of the motor epicyclic gear train 26 is connected to the ring gear 56 of another epicyclic gear train 58, hereinafter referred to as the epicyclic machine gear train, and carried by the bearing tubular 54. This epicyclic machine train, which is placed coaxially with the motor epicyclic gear train 26 by surrounding the sun gear shaft 38 of the epicyclic engine gear train, comprises a planet carrier 60 with satellites 62 carried by a tubular bearing 64 and meshing with the 56 and with a sun gear 66 mounted on a tubular shaft 68, said additional sun gear shaft, which surrounds the sun gear shaft 38 of the motor epicyclic gear train 26. The free end of the sun gear shaft 68 firmly carries a toothed wheel 70 which cooperates with another gear wheel 72 fixedly supported by the rotor 24 of the machine 22.
Le palier 64 du porte-satellites 60 porte fixement une roue dentée 74 qui coopère avec une autre roue dentée 76 liée à l'essieu moteur 1 6. Cet ensemble des deux roues dentées forme ainsi une voie de transmission de mouvement 78 entre le train épicycloïdal de machine et l'essieu. The bearing 64 of the planet carrier 60 securely carries a toothed wheel 74 which cooperates with another toothed wheel 76 connected to the drive axle 1 6. This set of two toothed wheels thus forms a motion transmission path 78 between the epicyclic gear train. of machine and axle.
Le train épicycloïdal de machine porte également un accouplement à commande contrôlée 80, à titre d'exemple un actionneur à griffes avec deux positions d'engrènement et une position neutre, permettant de relier sa couronne 56, soit au porte-satellites 60, soit au carter 44. The epicyclic machine train also carries a controlled-control coupling 80, for example a claw actuator with two meshing positions and a neutral position, for connecting its ring 56, either to the planet carrier 60, or to the casing 44.
Ce dispositif de variation de vitesse bien que donnant satisfaction présente un inconvénient non négligeable. This device of variation of speed although giving satisfaction has a significant disadvantage.
En effet, la roue dentée 76 liée à l'essieu moteur 1 6 a un sens de rotation contraire à celui de la roue dentée 74 portée par le palier tubulaire 64 du porte- satellites 60. Indeed, the toothed wheel 76 connected to the drive axle 1 6 has a direction of rotation opposite to that of the toothed wheel 74 carried by the tubular bearing 64 of the planet carrier 60.
Ceci entraîne des difficultés et des complexités d'implantation de l'ensemble du groupe motopropulseur dans le véhicule.  This causes difficulties and complexities of implementation of the entire powertrain in the vehicle.
Si la transmission est implantée de façon standard à gauche dans le compartiment moteur du véhicule, cela impose un moteur thermique tournant en sens opposé au sens standard. Si un moteur thermique tournant en sens opposé au sens standard n'est pas disponible, il est alors nécessaire de retourner le groupe motopropulseur en positionnant la transmission à droite dans le compartiment moteur. If the transmission is located as standard on the left in the engine compartment of the vehicle, this imposes a heat engine running in the opposite direction to the standard direction. If a thermal engine running in the opposite direction to the standard direction is not available, then it is necessary to return the power train by positioning the transmission to the right in the engine compartment.
La présente invention se propose de remédier à l'inconvénient précité grâce à un dispositif de variation de vitesse qui permet de réaliser la rotation de l'essieu moteur dans le même sens que celui du train épicycloïdal de machine. The present invention proposes to remedy the aforementioned drawback by means of a speed variation device which makes it possible to carry out the rotation of the driving axle in the same direction as that of the machine epicyclic gear train.
A cet effet, la présente invention concerne un dispositif de variation de vitesse d'un groupe motopropulseur de véhicule automobile, notamment de type hybride, comportant une machine motrice/génératrice et un moteur à combustion interne, ledit dispositif de variation de vitesse comprenant un train épicycloïdal de moteur avec un planétaire et une couronne reliés chacun à l'arbre du moteur à combustion interne par un accouplement à commande contrôlée et au carter dudit dispositif de variation de vitesse par un accouplement unidirectionnel, et un train épicycloïdal de machine placé coaxialement avec le train épicycloïdal de moteur et reliant ce train épicycloïdal de moteur à l'essieu moteur par une voie de transmission de mouvement comprenant une roue portée par le porte-satellites et une roue portée par ledit essieu moteur, caractérisé en ce que la voie de transmission de mouvement comprend une bande refermée sur elle-même reliant les roues entre-elles pour assurer la transmission de mouvement dans un même sens de rotation entre lesdites roues. For this purpose, the present invention relates to a device for varying the speed of a power unit of a motor vehicle, in particular of the hybrid type, comprising a driving / generating machine and an internal combustion engine, said speed variation device comprising a train epicyclic motor with a sun gear and a ring each connected to the shaft of the internal combustion engine by a controlled-control coupling and the housing of said speed variation device by a unidirectional coupling, and a planetary gear train placed coaxially with the epicyclic motor train and connecting this epicyclic motor train to the drive axle by a motion transmission path comprising a wheel carried by the planet carrier and a wheel carried by said driving axle, characterized in that the transmission path of movement includes a band closed on itself connecting the wheels together for ace to ensure the transmission of movement in the same direction of rotation between said wheels.
La bande refermée sur elle-même peut comprendre une chaîne. The tape closed on itself may include a chain.
La bande refermée sur elle-même peut comprendre une courroie. La courroie peut comprendre des crantages. Les roues peuvent comprendre des dentures d'engrènement. The band closed on itself may comprise a belt. The belt may include notches. The wheels may include meshing teeth.
Les roues peuvent comprendre des poulies. Les autres caractéristiques et avantages de l'invention vont apparaître maintenant à la lecture de la description qui va suivre, donnée à titre uniquement illustratif et non limitatif, et à laquelle est annexée : The wheels may include pulleys. The other features and advantages of the invention will now appear on reading the following description, given solely by way of illustration and not limitation, and to which is appended:
la figure 2 qui est un schéma montrant un dispositif de variation de vitesse d'un groupe motopropulseur selon l'invention appliqué à un système d'entraînement d'un véhicule hybride.  Figure 2 is a diagram showing a speed variation device of a powertrain according to the invention applied to a drive system of a hybrid vehicle.
Comme illustré sur la figure 2, la roue 74 portée par le palier tubulaire 64 du porte-satellites 60 du train épicycloïdal de machine 58 est reliée en rotation avec la roue 76 portée par l'essieu moteur 16 par une bande refermée sur elle- même 82 de façon à ce que le sens de rotation de la roue 74 soit le même que celui de la roue 76. As illustrated in Figure 2, the wheel 74 carried by the tubular bearing 64 of the planet carrier 60 of the machine epicyclic train 58 is connected in rotation with the wheel 76 carried by the drive axle 16 by a band closed on itself 82 so that the direction of rotation of the wheel 74 is the same as that of the wheel 76.
Cette bande peut être une chaîne à maillons 84, comme illustrée sur la figure 2, et dans ce cas les roues 74 et 76 sont des roues dentées permettant d'assurer la transmission de mouvement entre les deux roues. This band may be a chain link 84, as shown in Figure 2, and in this case the wheels 74 and 76 are gear wheels to ensure the transmission of movement between the two wheels.
Dans l'éventualité où la bande 82 est une courroie sans fin, généralement de section trapézoïdale, les roues 74 et 76 portées par le palier tubulaire 64 et par l'essieu moteur 1 6 sont des poulies en V ou des poulies polyV. In the event that the belt 82 is an endless belt, generally of trapezoidal section, the wheels 74 and 76 carried by the tubular bearing 64 and the drive axle 1 6 are V-shaped pulleys or polyV pulleys.
Pour une utilisation avec une courroie crantée, les roues 74 et 76 sont pourvues d'un crantage correspondant à celui de la courroie crantée. For use with a toothed belt, the wheels 74 and 76 are provided with a detent corresponding to that of the toothed belt.

Claims

REVENDICATIONS
1 ) Dispositif de variation de vitesse (10) d'un groupe motopropulseur de véhicule automobile, notamment de type hybride, comportant une machine motrice/génératrice (22) et un moteur à combustion interne (12), ledit dispositif de variation de vitesse comprenant un train épicycloïdal de moteur (26) avec un planétaire (36) et une couronne (46) reliés chacun à l'arbre du moteur à combustion interne par un accouplement à commande contrôlée (28, 30) et au carter (44) dudit dispositif de variation de vitesse par un accouplement unidirectionnel (32, 34), et un train épicycloïdal de machine (58) placé coaxialement avec le train épicycloïdal de moteur (26) et reliant ce train épicycloïdal de moteur à l'essieu moteur (16) par une voie de transmission de mouvement (78) comprenant une roue (74) portée par le porte-satellites (60) et une roue (76) portée par ledit essieu moteur, caractérisé en ce que la voie de transmission de mouvement (78) comprend une bande refermée sur elle-même (82) reliant les roues entre-elles pour assurer la transmission de mouvement dans un même sens de rotation entre lesdites roues. 1) Apparatus for varying the speed (10) of a powertrain of a motor vehicle, in particular of the hybrid type, comprising a driving / generating machine (22) and an internal combustion engine (12), said speed variation device comprising an epicyclic motor train (26) with a sun gear (36) and a ring gear (46) each connected to the internal combustion engine shaft by a controlled-control coupling (28, 30) and the housing (44) of said device speed variation by a unidirectional coupling (32, 34), and an epicyclic machine train (58) coaxially disposed with the epicyclic motor train (26) and connecting said epicyclic motor train to the driving axle (16) by a motion transmission path (78) comprising a wheel (74) carried by the planet carrier (60) and a wheel (76) carried by said driving axle, characterized in that the motion transmission path (78) comprises a band closed on itself (82) connecting the wheels together to ensure the transmission of movement in the same direction of rotation between said wheels.
2) Dispositif selon la revendication 1 , caractérisé en ce que la bande (82) refermée sur elle-même comprend une chaîne (84). 2) Device according to claim 1, characterized in that the band (82) closed on itself comprises a chain (84).
3) Dispositif selon la revendication 1 , caractérisé en ce que la bande (82) refermée sur elle-même comprend une courroie. 4) Dispositif selon la revendication 3, caractérisé en ce que la courroie comprend des crantages. 3) Device according to claim 1, characterized in that the band (82) closed on itself comprises a belt. 4) Device according to claim 3, characterized in that the belt comprises notches.
5) Dispositif selon l'une des revendications précédentes, caractérisé en ce que les roues (74, 76) comportent des dentures d'engrènement. 5) Device according to one of the preceding claims, characterized in that the wheels (74, 76) comprise meshing teeth.
6) Dispositif selon la revendication 3, caractérisé en ce que les roues (74, 76) comprennent des poulies. 6) Device according to claim 3, characterized in that the wheels (74, 76) comprise pulleys.
PCT/EP2015/059212 2014-05-07 2015-04-28 Device for varying the speed of a power train, specifically for driving a motor vehicle, in particular of the hybrid type WO2015169646A1 (en)

Priority Applications (2)

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EP15722108.6A EP3140142A1 (en) 2014-05-07 2015-04-28 Device for varying the speed of a power train, specifically for driving a motor vehicle, in particular of the hybrid type
CN201580021627.8A CN106255843A (en) 2014-05-07 2015-04-28 It is particularly useful for driving the device of the particularly speed for changing dynamical system of mixed motivity type motor vehicles

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FR1454132A FR3020786B1 (en) 2014-05-07 2014-05-07 DEVICE FOR VARYING THE SPEED OF A MOTORPOWER GROUP PARTICULARLY FOR DRIVING A MOTOR VEHICLE, ESPECIALLY OF THE HYBRID TYPE.
FR14/54132 2014-05-07

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FR3054495B1 (en) * 2016-07-29 2018-07-27 Ifp Energies Now METHOD FOR CONTROLLING A SPEED VARIATION TRANSMISSION DEVICE WITH COAXIAL EPICYCLOID TRAINS OF A MOTOR PULSE GROUP, ESPECIALLY FOR A HYBRID VEHICLE

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CN106255843A (en) 2016-12-21
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FR3020786B1 (en) 2016-05-27

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